Within Saint Augustine's "What We Are To Believe" what is the main thrust of the excerpt

According to Aquinas what comprises the "substance" of finite things

According to Augustine's The City of God (Book XII) - Chapter II "since God is supreme being- that is - since He supremely is and therefore is immutable it follows that He gave 'being' to all that He created [how]; not however [what]

In Epicurus' Principal Doctrines, "[What]... [as it] arise[s] from nature is a pledge of mutual advantage to restrain men from harming one another and save them from being harmed

According to J.S. Mill's Utilitarianism "The Creed [GHP] which accepts as the foundations of [what]... holds that actions are right in proportion as they tend to promote happiness, wrong as they tend to produce the reverse of happiness